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Hoarding: understanding it

Your things can hold real meaning. Understanding why is the first, kindest step toward a home that feels like yours again.

⏱ 8 min read📑 11 sections📚 31 sources✅ Reviewed October 2026

By the numbers

How common hoarding is, in the U.S. and around the world.

United States

2–6%of people are estimated to live with hoarding disorder (Cleveland Clinic and the International OCD Foundation).
About 2.6%is the overall rate of hoarding disorder given by the American Psychiatric Association. It is higher in people over 60.
About equalMen and women are affected at about the same rate.
3 in 4people with hoarding disorder also live with another mental health condition, most often depression or anxiety (IOCDF).

World

2.5%of working-age adults, pooled from 11 large studies (53,378 people) in developed countries (2019 review).
SimilarRates and signs appear similar across countries, races and cultures.

By age or group

15–19is the age when hoarding most often begins, according to most studies (APA). The IOCDF says first signs can appear as early as 11 to 15.
Almost 3×Hoarding symptoms are almost three times more common in older adults (55–94) than in younger adults (34–44), says the IOCDF.
About 1%of children and teens (0.98%) met criteria in one large study that screened 3,249 young people (2022).
23%of older adults who hoard, in one study of 82 people, said serious problems began after age 40 (2016).
About 32%of adults with ADHD in one clinic study also met criteria for hoarding (2023).
About 20%of people with hoarding disorder also have OCD (IOCDF).
Numbers vary from study to study because researchers measure hoarding in different ways. Behind every number is a person with their own story.

Clutter or hoarding?

Messy, collecting and hoarding are not the same thing.

Almost everyone has a drawer, a closet or a garage that gets out of hand. Clutter is normal. It usually comes from being busy, tired or short on space, and it tends to shrink again when life calms down.

Hoarding is different. It means finding it very hard to let go of things, feeling real distress when you try, and keeping so much that rooms can no longer be used the way they were meant to be. A kitchen you can’t cook in, a bed covered in bags, or a bathroom you can’t reach are common examples.

Collecting is different again. Collectors choose items carefully, keep them organized and enjoy showing them. With hoarding, items are often piled up, mixed together, and hard to find, and the person may feel more stress than joy.

🧺 Everyday clutterPiles that build up when life is busy, and that you can clear when you have time.
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Everyday clutter is about time and habits, not about deep distress. You might put off sorting the mail or folding laundry, but if you sat down to do it, letting go of the junk would feel fine, or even good.

Signs it’s everyday clutter

  • It bothers you, so you want to tidy it
  • The piles come and go with busy and quiet seasons
  • You can still use every room for its purpose
  • You can throw things away without feeling panicked
Even ordinary clutter can raise stress. The Clutter & letting go guide has simple, practical ways to lighten it.
🖼️ CollectingChosen, organized and enjoyed, like stamps, records or shells on a shelf.
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Collecting is a healthy, common hobby. Collectors usually focus on a theme, keep items in order, look after them, and often share them with others. Collecting can bring friendship, learning and joy.

Signs it’s collecting

  • It brings pleasure and connection, not dread
  • It fits in your space and budget
  • Items are displayed or stored with care
  • You know what you have and where it is
A collection can drift toward hoarding if it spills into living spaces, money gets tight, or you feel unable to stop. That’s worth noticing gently, not judging.
🏚️ HoardingGreat difficulty letting go, distress when trying, and clutter that blocks daily life.
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With hoarding, the hard part is the letting go. A person may feel a strong need to save things, feel upset or anxious at the thought of throwing them out, and keep acquiring more. Over time, the clutter gets in the way of cooking, cleaning, sleeping, washing and paying bills.

Many people living with hoarding don’t see it as a big problem, especially at first. Often it is a neighbour, friend or family member who notices first. This is not stubbornness. Our minds are good at getting used to what we see every day.

Things that often come along with it

  • Feeling disorganized or easily distracted
  • Not wanting others to touch your things
  • Pulling away from friends and family
  • Putting things off
  • Trouble making decisions
  • Wanting to do things perfectly or not at all
Having some of these experiences doesn’t mean you have a hoarding problem. People are complex, and only a qualified professional can assess what’s going on for you. Please talk to your clinical provider or therapist.
Short videos saying “if you keep these 5 things, you’re a hoarder” are not a diagnosis. Everyone is unique. If you’re worried, a clinical provider or therapist can help you understand what’s really going on.

Why people hold on

The real reasons behind keeping things. Tap any card.

From the outside, hoarding can look like it doesn’t make sense. From the inside, every item can feel important for a reason. Researchers have long described four main threads: how the mind processes information, strong emotional attachment to things, avoiding hard feelings, and beliefs about what things mean.

Scientists still don’t know exactly what causes hoarding. Most experts think it is a mix of things, and the mix is different for each person.

💛 Emotional attachmentThings can feel like part of you, a person you love, or a time you never want to lose.
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Many people who hoard feel very strongly attached to their things. An old jacket may feel like holding on to a parent. A box of cards may feel like proof that you were loved. Throwing it away can feel like losing the memory, or even losing part of yourself.

Some people also feel a kind of comfort or safety from being surrounded by their things. Getting something new can bring a rush of good feeling, which makes it easy to keep going.

A helpful question in therapy is: “Is the memory in the object, or in me?” Many people find a photo of an item, or keeping just one small piece, protects the memory just as well.
♻️ “It would be a waste”A strong sense of responsibility not to waste anything, or to find every item the perfect home.
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For some people, throwing something away feels morally wrong. It might still be useful, it could be fixed, or someone, somewhere, could need it. Others feel they must find the “right” home for every item before it can leave, which can take so long that nothing leaves at all.

Thoughts that often show up

  • “I might need this someday.”
  • “If I throw it out, I’ll regret it.”
  • “It was a bargain, I can’t pass it up.”
  • “It’s still perfectly good.”
Caring about waste is a good value. Therapy doesn’t try to take that away. It helps you weigh it against other values, like safety, family and having room to live.
🤔 Hard decisionsEvery item can turn into a big decision, and big decisions feel exhausting.
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Indecision and perfectionism are very common with hoarding. If a choice has to be perfect, it can feel safer not to choose at all. So the item goes back on the pile, “for now”.

Brain-scan research has found that, in people who hoard, areas linked to decision-making and emotions become unusually active when deciding about their own belongings, but not about other people’s. That may help explain why letting go of your own things feels so much harder.

Decision-making is a skill that can grow with practice. The Clutter & letting go guide has a whole section on building decision skills.
🧩 How the mind sorts informationPlanning, focusing, organizing and remembering can all play a part.
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Researchers have linked hoarding with differences in planning, problem-solving, attention, memory and organizing. For example, someone might sort items into dozens of categories instead of a few, or worry they’ll forget something exists unless they can see it.

How this can look day to day

  • Feeling every item is unique and can’t be grouped
  • Keeping things in sight “so I don’t forget them”
  • Losing track of bills and important papers
  • Starting to sort, then getting distracted
These differences are not about intelligence. Many people who hoard are very bright and creative. Their minds simply handle sorting and choosing in a different way.
🛡️ Avoiding hard feelingsPutting off decisions gives short-term relief, but the pile keeps growing.
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When sorting brings up anxiety, sadness or guilt, it’s natural to stop and walk away. That brings quick relief. But the brain learns “stopping makes the bad feeling go away”, so the next time feels even harder.

This is the same avoidance loop seen with many worries. Therapy works by helping you stay with the uncomfortable feeling for a little longer, in small steps, until it eases on its own.

🏡 Family and life eventsHoarding often runs in families, and big losses or stress can make it worse.
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Having a close relative who hoards makes hoarding more likely. That may be partly genes and partly growing up around it. Stressful events, such as a death in the family, divorce or losing a home, can also start hoarding or make it worse.

The NHS also lists difficult childhoods, such as having things taken away, abuse or neglect, and spending a lot of time alone, as possible risk factors.

A common belief is that people hoard because they once had very little. In one study, there was no link between growing up with less and later hoarding. Every story is different.

What people keep

Objects, paper, animals and files. Tap any card.

People can hoard almost anything. Often it is things others find it hard to see the value in, but it can also be valuable or useful items, just far too many of them.

🛍️ Everyday objectsClothes, bags, containers, kitchen items, tools, books, gifts and “free” things.
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Common items include clothes, shopping bags, newspapers and magazines, food containers, broken items “to fix later”, craft supplies and free samples. Some people buy many of the same thing, or pick up free items from the street.

Buying on impulse and finding it hard to pass up free things are both linked to hoarding. The Clutter & letting go guide has steps for cutting back on acquiring. If shopping itself feels hard to control, see the Shopping & spending guide.

Food that has gone off and piles near the stove are safety risks. If you’re starting small, these are good first targets.
📰 Paper and informationMail, receipts, newspapers, notes and articles “to read later”.
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Paper is one of the hardest things to let go of. It can feel full of information you might need, or a mistake waiting to happen if you throw away the wrong thing. Some people fear losing knowledge, so they save articles and notes for years.

Why paper piles up

  • Bills and letters that bring up stress, so they get avoided
  • Fear of throwing away something important by mistake
  • Not having a simple filing system
  • Wanting to read it “properly” first
A simple “action tray” for bills and forms, plus one box for “keep for records”, can stop important papers from getting lost in the piles.
🐾 Animal hoardingKeeping many animals without being able to meet their basic needs.
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Animal hoarding means keeping many animals, sometimes dozens or even hundreds, while not being able to give them food, water, a clean home or vet care. The person often believes they are rescuing or loving the animals and does not see the harm.

It can be dangerous for both the animals and the people in the home. A review of research found that people who hoard animals in poor conditions are often older and socially isolated. Experts think it may have different causes from object hoarding and need a different kind of help.

If animals are suffering, contact your local animal control or animal welfare agency. Getting the animals safe and getting the person support can both happen at once.
💾 Digital hoardingThousands of photos, emails, files and tabs you can’t bring yourself to delete.
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Digital hoarding was first written about in a medical case report in 2015. It describes piling up digital files until you lose track of them, which leads to stress and disorganisation. It doesn’t fill a room, but it can still affect daily life.

Researchers are still working out whether digital hoarding is part of hoarding or something separate. For most people, digital clutter is simply clutter. The Clutter & letting go guide has practical tips for lightening it.

Sometimes clutter happens for other reasons. For example, a person with OCD may avoid sorting because of fears of germs or of making a mistake. That needs a different kind of help, so getting a proper assessment matters. See the OCD guide.

How it starts, and who it affects

Often it begins in the teen years, grows slowly, and can touch anyone.

Hoarding often starts early. Most studies find that the first signs show up between ages 15 and 19, and the International OCD Foundation notes they can appear as early as 11 to 15. At that age, parents usually control the house, so the clutter stays small and nobody worries.

Over the years, it tends to slowly build. Without help, it often gets worse with each decade. It may start to get in the way of daily life by the mid-20s and cause real problems by the mid-30s. That’s why hoarding is more common in later life.

But it doesn’t always start young. In one study of older adults who hoard, about 23% said serious problems began after age 40. Big life events, like losing a partner, can be a turning point.

A common pattern (not everyone’s story)

  1. Teens: saving things, finding it hard to let go, strong attachment to items
  2. Young adulthood: first home of your own, more freedom to acquire, rooms slowly fill
  3. Middle age: work, family and stress pile on; clutter begins to block daily tasks
  4. Later life: losses, health changes and living alone can make it harder to manage
🌍 Every culture and backgroundHoarding shows up in every country, culture and income level.
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The International OCD Foundation describes hoarding as a universal experience, with the same core features across races, ethnicities and cultures. Rates look similar from country to country.

It also happens across all incomes. In one study, growing up with less was not linked to later hoarding.

⚖️ Men and women alikeMen and women are affected at about the same rate.
Read more

Both the American Psychiatric Association and the International OCD Foundation say hoarding affects men and women at similar rates. Stereotypes on TV can make it look like one kind of person hoards, but that isn’t what research shows.

👵 More common with ageSymptoms are almost three times more common in older adults.
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The IOCDF reports that hoarding symptoms are almost three times more common in adults aged 55 to 94 than in adults aged 34 to 44. This fits with the way hoarding tends to build slowly over a lifetime.

The “Older adults” section below looks at later life more closely.
🧩 Rarely aloneAbout three in four people who hoard also live with another mental health condition.
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The most common ones are depression, social anxiety and general worry. Around one in five people who hoard also has OCD.

The next section, “Links with other struggles”, explains how these can feed each other.
The earlier someone gets support, the better things tend to go. You don’t have to wait until a home is “bad enough” to talk to a clinical provider or therapist.

Links with other struggles

Trauma, grief, ADHD, low mood, OCD and loneliness. Tap any card.

Hoarding rarely shows up alone. Many people who hoard also live with low mood, worry, attention difficulties or past hurts. Understanding these links can make support more helpful.

🌩️ Trauma and stressHard life events are linked to hoarding, but the research is still mixed.
Read more

In one study, people who hoarded reported more traumatic and stressful events than people who didn’t, and the more events they had lived through, the more severe their hoarding tended to be. About half linked the start of their hoarding to a stressful time in life.

A later study compared people who hoard with people living with anxiety or PTSD. It found most kinds of hard events were not more common in hoarding, except crime-related events. So trauma may play a part for some people, but it isn’t the whole story.

If past trauma feels connected to your things, a trauma-informed therapist can help with both. See the “Trauma: what it is & how it affects you” guide.
🕯️ Grief and lossAfter a death or big loss, keeping things can feel like keeping the person close.
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Grief after a bereavement is one of the things the NHS lists as a possible trigger for hoarding. Clearing a loved one’s belongings can feel like losing them all over again, so many people simply can’t start.

Gentle ideas

  • Choose a few special items to keep and display with pride
  • Invite family to choose keepsakes together and share stories
  • Take photos of items before they leave
  • There is no deadline for sorting a loved one’s things
For more on living with loss, see the “Grief: understanding loss” guide.
⚡ ADHD and attentionTrouble with focus, planning and finishing tasks can make clutter pile up fast.
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ADHD is one of the conditions most often seen alongside hoarding. In one clinic study of adults, about 32% of those with ADHD also met criteria for hoarding, compared with 8% of people with OCD and 4% of healthy volunteers.

Distraction, impulsive buying and difficulty organizing can all feed clutter. For some, the problem is less about attachment and more about never finishing the sorting.

Short timed sessions, body doubling (sorting while someone sits with you) and clear bins can help attention-friendly sorting. See the “ADHD: understanding it” guide for more.
🌧️ Low mood and worryDepression and anxiety are common alongside hoarding, and each can feed the other.
Read more

Hoarding is more common in people living with depression and anxiety. Low mood drains the energy to sort, and worry makes every decision feel risky. Then the clutter itself can add shame and stress.

A Cleveland Clinic article notes research linking cluttered homes with more depressed moods. Help for low mood and help for clutter often work best together.

See the “Depression: understanding it” and “Anxiety: understanding it” guides for coping tools that also make sorting easier.
🔁 OCDHoarding used to be grouped with OCD. Now it’s seen as related but separate.
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Hoarding was once thought to be a type of OCD, but it is now recognized as its own experience. Some people have both. In OCD-related saving, people usually take no pleasure in the clutter and aren’t strongly attached to the items.

The OCD guide explains the obsession and compulsion cycle and the therapy that helps it.
🫂 LonelinessClutter can keep people away, and being alone can make things feel more important.
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A 2026 review of 13 studies found a clear link between hoarding and loneliness. It isn’t yet known which comes first. Shame about the home can stop people inviting friends over, and fewer people around can mean things fill the gap.

Reconnecting with people is part of recovery. See the Ways to reconnect guide, and the support groups in the Clutter & letting go guide.

Health, safety & relationships

How heavy clutter can affect the body, the home and the people in it.

Heavy clutter is not just about how a home looks. It can make daily life harder and less safe, and it can strain the people we love most.

🔥 Safety risksFire, falls and blocked exits are the most serious dangers.
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Piles near heaters, stoves and outlets can catch fire, and blocked hallways make it hard to escape or for firefighters and paramedics to get in. Narrow paths raise the risk of tripping and falling, especially for older people or anyone with mobility problems.

Very heavy clutter can even weaken floors. These risks are why experts put safety first, before tidiness.

The When someone you love hoards guide has a “Safety first” section and a “Safety check” worksheet you can use for your own home too.
🫁 HealthDust, mould, pests and hard-to-reach kitchens and bathrooms affect the body.
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Dust, pet hair, mould and pests can cause headaches, asthma, allergies and hygiene problems for everyone in the home. When a kitchen or bathroom can’t be used, eating well and staying clean get much harder.

Other effects

  • Losing bills, which can lead to money problems
  • Poor sleep if the bed is covered
  • Stress and shame that wear down mood
  • Trouble finding health items or important papers
💔 RelationshipsArguments, hurt, distance and loneliness are common in families.
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Families often argue about lost space, money spent on buying and storage, and well-meaning clean-outs that feel like betrayal. Partners may put up with it for years before things break down.

Children growing up in a cluttered home may feel embarrassed to invite friends, or feel less important than the things. As adults, some feel distant from the parent who hoards.

The When someone you love hoards guide is written for partners, children and friends.
🏠 Housing and legal problemsIn severe cases, hoarding can lead to eviction or agency involvement.
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Extreme clutter can break housing rules or health codes and can lead to eviction. In severe cases, child or elder protective services, or animal welfare agencies, may get involved.

If you’re facing a housing deadline, ask for help early. Many cities have hoarding task forces that work with housing and health teams to help people keep their homes. The When someone you love hoards guide explains landlords, agencies and your rights.

Myths and facts

Common beliefs about hoarding, and what research says.

❌ Myth: “They’re just lazy.”Fact: Hoarding is a mental health experience, not laziness or weak willpower.
Read more

Hoarding involves strong emotions, real differences in decision-making and attention, and deep attachment to things. Many people who hoard work very hard, sometimes too hard, trying to keep up.

Shame makes hoarding harder to talk about. Kindness makes change more likely.
❌ Myth: “A big clean-out will fix it.”Fact: Forced clear-outs rarely last and can make things worse.
Read more

Without help for the underlying reasons, clutter usually comes back. Lasting change comes from building new skills and new ways of thinking, at the person’s own pace.

The When someone you love hoards guide explains why, and what works better.
❌ Myth: “Only older people hoard.”Fact: It often starts in the teen years, then slowly grows.
Read more

Hoarding is more common in later life because it tends to build over decades. But most people notice the first signs between ages 15 and 19.

❌ Myth: “It only happens to people who grew up poor.”Fact: Research hasn’t found a clear link between growing up with less and hoarding.
Read more

In one study, there was no link between levels of material hardship and hoarding. Hoarding happens across all incomes, cultures and countries, and men and women are affected about equally.

❌ Myth: “Nothing can help.”Fact: Therapy and support groups can reduce hoarding, especially with steady practice.
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A therapy called CBT for hoarding has the best research support. Change often takes time and may not be complete, but many people make real progress in safety, space and stress.

The Clutter & letting go guide explains CBT for hoarding in plain words.

Children and teens

When collecting is normal, when to look closer, and how parents can help.

Collecting is very common in childhood. Rocks, cards, stickers and toys are all part of growing up. One review notes that up to 60% of children and teens collect things, and that is healthy.

Hoarding in young people is less common. In one large study that screened over 3,000 young people, about 1% of children and teens met criteria. Experts think studying it in youth matters, because it often begins in childhood and can continue into adulthood.

🪨 Healthy collectingMost children’s collections are a normal, joyful part of growing up.
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Children often collect things they love, swap them with friends and enjoy sorting them. This can build curiosity, patience and friendships. Collecting by itself is not a warning sign.

Signs it’s healthy collecting

  • It brings joy and is easy to talk about
  • It fits in the space they have
  • They can still let go of other things, like old schoolwork
  • They enjoy showing or sharing it
👀 Signs to look closerStrong distress about letting go, and saving things that seem to have no use.
Read more

Things parents may notice

  • A bedroom so full it is hard to sleep or study
  • Extreme upset when old papers, wrappers or broken toys are thrown away
  • Hiding items or getting very upset if others touch them
  • Saving things with no clear use or meaning to others
  • Strong worry about forgetting or losing things

In young people with OCD, hoarding is fairly common. One study found it in about a quarter of youths with OCD, often along with indecision.

Having some of these signs doesn’t mean your child has a hoarding problem. Please talk to your child’s clinical provider or a therapist who works with young people.
🤝 How parents can helpStay calm, listen, and avoid secret clear-outs.
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There isn’t yet a research-tested treatment designed just for young people who hoard, but cognitive and behavioral approaches seem promising.

Helpful steps

  • Agree on limits together, like one box for special papers
  • Ask about the meaning of items with curiosity, not judgment
  • Never throw things away behind their back
  • Praise small wins
  • Reach out to a clinical provider or therapist if distress is strong
If it’s a parent who hoards and a child living with the clutter, see “Children in the home” in the When someone you love hoards guide.

Older adults

Why clutter can grow in later life, and how to help with dignity.

Hoarding is more common after 60, partly because it tends to build over many decades. Later life can also bring losses, living alone and health changes that make sorting harder.

Research shows older adults who hoard often have more trouble with planning and organizing skills, and many struggle with daily tasks. In a 2026 study of 169 lower-income older adults who hoard, about half had serious problems managing daily life.

🦯 Falls and safetyNarrow paths and blocked exits are especially risky with age.
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Blocked pathways raise the risk of falls, especially for people with limited mobility, and clutter can slow emergency help. Clearing walkways and exits is often the most important first step.

A clear path from bed to bathroom, and from the living room to the front door, can be life-saving.
🤲 Respect and independenceBuilding trust and protecting independence are the best motivators.
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Experts suggest building a personal relationship first, treating sentimental items with care, and showing how reducing clutter can help the person keep living independently. That goal often matters deeply to older adults.

Senior centers, councils on aging and area agencies on aging can help assess and support. Elder protective services can step in if hoarding leads to neglect.

🧠 Help shaped for later lifeAdding memory and planning skills to sorting practice can help.
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One trial with 58 older adults tested a program that added memory and planning training before sorting practice. Those who finished it had about a 38% drop in symptoms, compared with 25% for standard case management, and the gains lasted at least six months.

Case management helped too. Any steady, caring support is worth having.
📦 Downsizing and movesMoving to a smaller home or care setting can bring up deep feelings.
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Downsizing means letting go of many things at once, often along with a home full of memories. Going slowly, keeping the person in charge of choices, and choosing meaningful items to bring can protect dignity.

For moving into assisted living and much more about later life, see the Independence & care in later life guide. Adult children can find more in the When someone you love hoards guide.
Changes in memory or thinking can sometimes look like clutter problems. If you notice new confusion or forgetfulness, encourage a check-up with a clinical provider.

When and where to get help

When to reach out, who can help, and what to expect.

It’s a good time to reach out if clutter is making your home unsafe or unhealthy, if you feel very distressed about your things, or if it’s affecting your relationships, work or money. You can also reach out simply because you’re worried.

A path to support

  1. Talk to your clinical provider or primary care doctor. They can check your overall health and refer you.
  2. Look for a therapist trained in CBT for hoarding. The IOCDF Hoarding Center has a directory.
  3. Ask whether they offer home visits, or can work with a professional organizer who understands hoarding.
  4. Consider a support group alongside therapy.
  5. If the home has urgent safety issues, contact local fire, housing or adult or child protective services.
📝 What an assessment is likeA calm conversation about your life, not a test you can fail.
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In an assessment, a specialist will ask about your mood, habits, health and family history, and make sure nothing else better explains what’s going on. With your permission, they may also talk with family.

You stay in charge. Nobody can make you throw things away as part of an assessment.
🛠️ What helpsCBT for hoarding has the strongest research support.
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CBT for hoarding helps you understand why you hold on, practise letting go a little at a time, and build skills for deciding and organizing. Support groups like Buried in Treasures can help too.

The Clutter & letting go guide explains CBT, sorting methods and support groups step by step.
🌐 Outside the U.S.Help is available in most countries.
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In the UK, the NHS suggests seeing a GP, who can usually refer you to a mental health specialist. Elsewhere, a family doctor is a good first step.

If you need to talk to someone now, findahelpline.com lists free, confidential helplines in many countries.

For costs, insurance and finding care, see the Finding mental health care guide. For different kinds of therapy, see Therapy: the basics.
If you’re in crisis, call or text 988 (U.S.), or text HOME to 741741. If a life is in danger, call 911.

📝 Worksheets for this guide

Fill these in privately in the app. Your answers stay on your phone.

My clutter mapTake a gentle look at each space in your home, without judgment, to see where to start.
Values and spaceConnect your home to what matters most to you, to find your own reasons for change.
My support planGather the people and places that can help you keep going.
🔒 Fill in privately in the Mentally United Wellness App. Free, no ads, no accounts.

Sources

  1. Cleveland Clinic. Hoarding Disorder
  2. NHS (UK National Health Service) (2026). Hoarding disorder
  3. American Psychiatric Association (APA). What Is Hoarding Disorder?
  4. International OCD Foundation (IOCDF) Hoarding Center. About Hoarding
  5. International OCD Foundation (IOCDF) Hoarding Center. Who gets Hoarding Disorder?
  6. International OCD Foundation (IOCDF) Hoarding Center. How Is Hoarding Disorder Treated?
  7. International OCD Foundation (IOCDF) Hoarding Center. How to Help a Loved One with HD
  8. International OCD Foundation (IOCDF) Hoarding Center. How HD Affects Families
  9. International OCD Foundation (IOCDF) Hoarding Center. Subtypes & Related Disorders
  10. International OCD Foundation (IOCDF) Hoarding Center. Hoarding Disorder in Elderly Populations
  11. Cleveland Clinic Newsroom (2022). Declutter Your Home, Destress Your Mind
  12. Peer-reviewed research (PubMed, NIH) (2015). Cognitive behavioral therapy for hoarding disorder: a meta-analysis (Tolin, Frost, Steketee & Muroff, Depression and Anxiety)
  13. Peer-reviewed research (PubMed, NIH) (2019). Prevalence of Hoarding Disorder: A systematic review and meta-analysis (Postlethwaite, Kellett & Mataix-Cols, Journal of Affective Disorders)
  14. Peer-reviewed research (PubMed, NIH) (1996). A cognitive-behavioral model of compulsive hoarding (Frost & Hartl, Behaviour Research and Therapy)
  15. Peer-reviewed research (PubMed, NIH) (2012). Neural mechanisms of decision making in hoarding disorder (Tolin et al., Archives of General Psychiatry)
  16. Peer-reviewed research (PubMed, NIH) (2011). Stressful life events and material deprivation in hoarding disorder (Landau et al., Journal of Anxiety Disorders)
  17. Peer-reviewed research (PubMed, NIH) (2021). Exposure to stressful and traumatic life events in hoarding: Comparison to clinical controls (Ouellette et al., Journal of Clinical Psychology)
  18. Peer-reviewed research (PubMed, NIH) (2023). Who really hoards? Hoarding symptoms in adults with ADHD, OCD and healthy controls (Grassi et al., Journal of Psychiatric Research)
  19. Peer-reviewed research (PubMed, NIH) (2026). Loneliness in hoarding disorder: a systematic review and meta-analysis (Yap et al., Behavioural and Cognitive Psychotherapy)
  20. BMJ Case Reports (peer-reviewed) (2015). A case of digital hoarding (van Bennekom et al., BMJ Case Reports)
  21. Peer-reviewed research (PubMed, NIH) (2022). Noah Syndrome: A Review Regarding Animal Hoarding with Squalor (Innovations in Clinical Neuroscience)
  22. Peer-reviewed research (PubMed, NIH) (2016). Age of onset and progression of hoarding symptoms in older adults with hoarding disorder (Dozier, Porter & Ayers, Aging & Mental Health)
  23. Peer-reviewed research (PubMed, NIH) (2013). Executive functioning in older adults with hoarding disorder (Ayers et al., International Journal of Geriatric Psychiatry)
  24. Peer-reviewed research (PubMed, NIH) (2018). Cognitive Rehabilitation and Exposure/Sorting Therapy (CREST) for Hoarding Disorder in Older Adults: A Randomized Clinical Trial (Ayers et al., Journal of Clinical Psychiatry)
  25. Peer-reviewed research (PubMed, NIH) (2026). Daily Functioning in Low-Income Older Adults With Hoarding Disorder (Williams et al., American Journal of Geriatric Psychiatry)
  26. Peer-reviewed research (PubMed, NIH) (2012). The Buried in Treasures Workshop: waitlist control trial of facilitated support groups for hoarding (Frost et al., Behaviour Research and Therapy)
  27. Peer-reviewed research (PubMed, NIH) (2022). Prevalence and correlates of hoarding behavior and hoarding disorder in children and adolescents (Akıncı et al., European Child & Adolescent Psychiatry)
  28. Peer-reviewed research (PubMed, NIH) (2016). Hoarding in Children and Adolescents: A Review (Morris, Jaffee & Goodwin, Child Psychiatry & Human Development)
  29. Peer-reviewed research (PubMed, NIH) (2014). Hoarding in Children and Adolescents with Obsessive-Compulsive Disorder (Samuels et al., Journal of Obsessive-Compulsive and Related Disorders)
  30. Peer-reviewed research (PubMed, NIH) (2015). Three Reasons why Studying Hoarding in Children and Adolescents is Important (Burton, Arnold & Soreni, Journal of the Canadian Academy of Child and Adolescent Psychiatry)
  31. Peer-reviewed research (PubMed, NIH) (2012). Pathological hoarding by children and adolescents (Aerts et al., Tijdschrift voor Psychiatrie; Dutch-language review)

This guide is for education and self-care. It is not a diagnosis or a substitute for professional care. Please talk to a counselor or clinical provider about your health. Reviewed October 2026.

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